Flame Retardant For PU Foam

Expandable Graphite is a very good flame retardant for all kinds of PU foam, and have a very good effect on oxygen index, and make it up to 30;

When there is a fire happen, graphite inside the PU foam will grow in size instantly hundred times, to generate a carbon layer on the burning surface, this cause further burn will need more oxygen, and the fire will stop simultaneously.

This makes Expandable Graphite a very promising and must added material to many PU foams like Rigid Sandwich Panels for construction, Mattress and Pillows, Car Engine Hood, etc.

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